diff --git a/.github/workflows/testing_doc.yml b/.github/workflows/testing_doc.yml
index d2e2624b..b743566c 100644
--- a/.github/workflows/testing_doc.yml
+++ b/.github/workflows/testing_doc.yml
@@ -3,12 +3,12 @@ name: Test Sphinx Documentation Build
 on:
   push:
     branches:
-      - main
+      - "master"
     paths:
       - 'docs/**'
   pull_request:
     branches:
-      - main
+      - "master"
     paths:
       - 'docs/**'